MAX1272
Fault-Protected, 12-Bit ADCs with Software-Selectable Input Range
Fault-Protected, 12-Bit ADCs with Software-Selectable Input Range
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Overview
Features and Benefits
- Four Software-Selectable Input Ranges
- MAX1272: 0 to 10V, 0 to 5V, ±10V, ±5V
- MAX1273: 0 to VREF, 0 to VREF / 2, ±VREF, ±VREF / 2
- 12-Bit Resolution, No Missing Codes
- 5V Single-Supply Operation
- SPI/QSPI/MICROWIRE-Compatible 3-Wire Interface
- 87ksps Sampling Rate
- ±12V Fault-Protected Analog Input (MAX1272)
- Internal (4.096V) or External (2.4V to 4.18V) Reference
- Low Power
- 1.5mA at 87ksps
- 0.4mA at 10ksps
- 0.2mA at 1ksps
- Four Power-Down Modes
- 8-Pin PDIP Package
Product Details
The MAX1272/MAX1273 multirange 12-bit data-acquisition systems (DAS) operate with a single 5V supply. The software-programmable analog input accepts a variety of voltage ranges: ±10V, ±5V, 0 to 10V, 0 to 5V for the MAX1272; ±VREF, ±VREF / 2, 0 to VREF, 0 to VREF / 2 for the MAX1273. The software-selectable extended analog input range increases the effective dynamic range to 14 bits and provides the flexibility to interface 4-20mA powered sensors directly to a single 5V system. In addition, the MAX1272 provides fault protection to ±12V. Other features include a 5MHz track/hold (T/H) bandwidth, 87ksps throughput rate, and internal (4.096V) or external (2.40V to 4.18V) reference.
The MAX1272/MAX1273 serial interfaces connect directly to SPI/QSPI™/MICROWIRE®-compatible devices without any external logic.
Four software-programmable power-down modes (delayed standby, immediate standby, delayed full power-down, and immediate full power-down) provide low-current shutdown between conversions. In standby mode, the internal reference buffer remains active, thus eliminating startup delay.
The MAX1272/MAX1273 are available in an 8-pin µMAX® package. Both devices are available in the extended (-40°C to +85°C) temperature range.
Applications
- Automatic Testing
- Battery-Powered Instruments
- Data Acquisition Systems
- Industrial Control Systems
- Medical Instruments
- Robotics
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
Tools & Simulations
Software Development
Product Recommendations
MAX1272 Companion Parts
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| MAX1272CUA+ | Material Declaration | Reliability Data | Micro-MAX, Thin Shrink Small-Outline | |
| MAX1272CUA+T | Material Declaration | Reliability Data | Micro-MAX, Thin Shrink Small-Outline | |
| MAX1272EUA+ | Material Declaration | Reliability Data | Micro-MAX, Thin Shrink Small-Outline | |
| Wafer Fabrication Data |
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